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Gauge & Instrument Guards

Griffco diaphragm gauge guards and instrument isolators are designed to enhance the performance of chemical feed systems. The addition of gauges to the system ensures optimal pressures are maintained. Diaphragm isolators protect instruments against chemical attack. Also known as diaphragm isolators.

Available Sizes

1/4″, 3/8″, and 1/2″ (NPT, BSPT, Socket, Union, Flange)
Gauge Port Size: 1/4″

No Gauge
0 – 160 psi (Standard)

Economy Gauge
Brass Case w/Brass Connection
0 – 60 psi

Mid-Range Gauge
304 SS Gauge Case w/Brass Connection
0 – 100 psi

Premium Gauge
304 SS Gauge Case w/316 SS Connection
(Glycerin Filled)
0 – 200 psi

PVC (Max Temp: 140°F / 60°C)
CPVC (Max Temp: 190°F / 87°C)
Polypropylene (Max Temp: 190°F / 87°C)
PTFE
PVDF (Max Temp: 300°F / 150°C)
316L SS
Alloy 20

Top
Noryl®

O-Ring

Viton®

Connections

Standard: Viton®
Optional: PTFE, Hypalon®, Kalrez®

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GGU050CP0TT
Connection – CPVC – PTFE – No Gauge – Socket connectors – EPDM Internal O-Ring and PTFE Encapsulated Union Connection O-Ring
GGU050CP11
Connection – CPVC – Economy Gauge – 160 psi – Viton – 70/30 Glycerin Filled – Socket Connectors
GGU050CP11T
Connection – CPVC – Economy Gauge – 160 psi – PTFE – 70/30 Glycerin Filled – Socket Connectors
GGU050CP11TE
Connection – CPVC – Economy Gauge – 160 psi – PTFE – 70/30 Glycerin Filled – Socket Connectors – EPDM O-Rings
GGU050CP11XL
Connection – CPVC – XL Economy Gauge – 160 psi – Viton – 70/30 Glycerin Filled – Socket Connectors
GGU050CP14T
Connection – CPVC – Economy Gauge – 200 psi – PTFE – 70/30 Glycerin Filled – Socket Connectors
GGU050CP14TM
Connection – CPVC – Economy Back Mount Gauge – 200 psi – PTFE – 70/30 Glycerin Filled – Socket Connectors
GGU050CP15T
Connection – CPVC – Economy Gauge – 300 psi – PTFE – 70/30 Glycerin Filled – Socket Connectors
GGU050CP23
Connection – CPVC – Mid Range Gauge – 100 psi – 70/30 Glycerin Filled – Socket Connectors
GGU050CP23TE
Connection – CPVC – Mid Range Gauge – 100 psi – PTFE – 70/30 Glycerin Filled – Socket Connectors – EPDM O-Rings
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